Re: G-vi rear gears

The problem may not be in the rear, it might be up front under the hood. If your engine is stock I would concentrate on making more HP. Is it diesel or LP? How about rear tires as a way to slow it down? If you're running the 18.4/34, maybe you could go down to a 16.9/34? The real early U had slower gears I think but I don't know how they'd swap into a GVI.

You make a good point. My G6 is stock, except for the fuel screw is all the way out. It makes rated power at 100 rpm over spec. (78hp @ 1500 RPM). I thot that was pretty good at 3500 ft above sea level. The 660 could make a little more but his big advantage is his super slow first gear. We are equals if he uses 2nd. If traction is not good on a given day it can go either way. As for tires, we both run 18-34s, he runs R1W radials but i dont see the advantage. I do have a set of 16.9s on a GTB that i could try quite easily. I run new Firestone 23degree on everything.

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